How likely is a civil war?

[thyme4change]

If Texas leaves, the US should immediately accept their decision and recognize them as a country. Then immediately declare them a national threat, use the US military to declare war, occupy them, revoke their statehood, split them into a handful of territories and treat them as such. They can’t make any decisions on their borders, they lose representation in congress, don’t get votes in electoral college and anyone born there is still a US citizen. If they apply for statehood, we could put in a gerrymandered version of states, which would reduce the power of Texas.

Texas won’t secede.